| 초록 |
Perovskite quantum dots (PeQDs) have been considered ideal candidates for demonstrating full-color electroluminescent devices owing to their properties as high photoluminescent quantum yield (PLQY), emission color tunability, and solution process-ability. To demonstrate full-color for lighting displays based on PeQDs, the main limitation of the protocols such as hot injection and ligands-assisted reprecipitation methods, is time-consuming. Herein, we fabricated full-color PeQDs based light emitting diodes (PeQLEDs) emitting red, green, and blue colors through a facile post-synthetic method via regulating the composition of ammonium halide salts. The blue, green, and red PeQLEDs exhibit an EL peak at 485, 517, and 649 nm with an EQE of 0.65%, 0.59% and 1.23%, respectively. In conclusion, the full-color PeQLEDs is achieved via facile regulating the halide composition of PeQDs. |
